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MAX8805Y - 600mA/650mA PWM Step-Down Converters

Download the MAX8805Y datasheet PDF. This datasheet also covers the MAX8805W variant, as both devices belong to the same 600ma/650ma pwm step-down converters family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX8805W/MAX8805X/MAX8805Y/MAX8805Z high-frequency step-down converters are optimized for dynamically powering the power amplifier (PA) in WCDMA or NCDMA handsets.

Key Features

  • PA Step-Down Converter 7.5µs (typ) Settling Time for 0.8V to 3.4V Output Voltage Change Dynamic Output Voltage Setting from 0.4V to VBATT 60mΩ pFET and 100% Duty Cycle for Low Dropout 2MHz or 4MHz Switching Frequency Low Output-Voltage Ripple 600mA (MAX8805Y/MAX8805Z) or 650mA (MAX8805W/MAX8805X) Output Drive Capability 2% Maximum Accuracy Tiny External Components.
  • Dual Low-Noise LDOs Low 35µVRMS (typ) Output Noise High 70dB (typ) PSRR Guaranteed 200mA Output Drive Capability.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX8805W_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX8805W 600mA/650mA PWM Step-Down Converters
MAX8805X 600mA/650mA PWM Step-Down Converters
MAX8805Z PWM Step-Down Converters
MAX8804W USB/AC Adapter Chargers
MAX8804Y USB/AC Adapter Chargers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
19-0777; Rev 1; 10/07 600mA/650mA PWM Step-Down Converters in 2mm x 2mm WLP for WCDMA PA Power General Description The MAX8805W/MAX8805X/MAX8805Y/MAX8805Z high-frequency step-down converters are optimized for dynamically powering the power amplifier (PA) in WCDMA or NCDMA handsets. The devices integrate a high-efficiency PWM step-down converter for mediumand low-power transmission, and a 60m Ω typical bypass FET to power the PA directly from the battery during high-power transmission. Dual 200mA low-noise, high-PSRR low-dropout regulators (LDOs) for PA biaswww.DataSheet4U.com ing are also integrated. Two switching frequency options are available (2MHz for the MAX8805W/MAX8805Y and 4MHz for the MAX8805X/ MAX8805Z), allowing optimization for smallest solution size or highest efficiency.